Perhaps you should try some spelling variations:
"international waters" » "international patient", "international actor", "international trade", "international actors", "international patients", "international trades"
"international water" » "international actor", "international patient", "international trade"
"international watercourses" » "international actorcourses", "international patientcourses", "international tradecourses"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("international waters") OR ("international water"))) or ("international watercourses"))) or ("international law"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("international waters") OR ("international water"))) OR ("international watercourses"))) OR ("international law")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"international waters\") OR (\"international water\"))) or (\"international watercourses\"))) or (\"international law\"))".
• Removing quotes may allow a broader search: (((((( international waters ) OR ( international water ))) or ( international watercourses ))) or ( international law )).
• Adding a wildcard symbol may retrieve word variants: (((((("international waters") OR ("international water"))) or ("international watercourses"))) or ("international law"))*.